HERA-BD Type Series Booklet

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Knife Gate Valve

HERA-BD

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Type Series Booklet HERA-BD

All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,

edited or processed for any other purpose, nor otherwise transmitted, published or made available to a

third party without the manufacturer's express written consent.

Subject to technical modification without prior notice.

(3)

Knife Gate Valves... 4

Bi-directional Knife Gate Valve ... 4

HERA-BD ... 4

Main applications... 4

Fluids handled ... 4

Operating data... 4

Valve body materials... 4

Design details ... 4

Product benefits ... 4

Product information ... 5

Knife Gate Valves

Bi-directional Knife Gate Valve

HERA-BD

Main applications

▪ Waste water treatment plants

▪ Biogas plants

▪ Solids transport

▪ Water treatment

▪ Pulp and paper industry

▪ Drainage systems

▪ Drainage

▪ Washing plants

▪ Sludge disposal

▪ Sludge processing

▪ Food industry and beverage industry

Fluids handled

▪ Waste water with/without faeces

▪ Activated sludge

▪ Service water

▪ Digested sludge

▪ Solids-laden fluids

▪ River water, lake water and groundwater

▪ Raw sludge

▪ Grey water

▪ Other fluids on request.

Operating data

Operating properties

Characteristic Value

Nominal pressure PN 10

Nominal size DN 50 - 1200

Max. permissible pressure [bar] 10

Min. permissible temperature [°C] ≥ -10

Max. permissible temperature [°C] ≤ +120

Valve body materials

Overview of available materials

Material Material number Temperature limit

EN-GJS-400-15 5.3106 ≤ 120 °C

Design details

Design

▪ Wafer-type design: suitable for clamping between pipe

flanges or dead-end service at full operating pressure

▪ Single-piece (≤ DN 500) or two-piece (> DN 500) body with integrated flange seal

▪ Short face-to-face length to EN 558-1/20

▪ Non-rising stem

▪ Non-rising handwheel

▪ Blade made of 1.4571 as standard (≤ DN 400)

▪ Confined U-shaped seal made of EPDM

▪ Transverse seal with gland packing

▪ Robust yoke for actuator mounting as standard

▪ All steel parts and cast iron parts epoxy-coated (200 µm) to protect against corrosion, colour: RAL 5015, blue

Variants

▪ Blade made of 1.4571 / AISI 316 Ti (≥ DN 450)

▪ Stem made of 1.4571 / AISI 316 Ti

▪ Nuts and bolts made of A4

▪ Sealing material made of NBR or Viton (U-shaped seal and

O-rings)

▪ Gland packing made of stainless steel braiding, with

scraper effect

▪ Chain wheel ≤ DN 600

▪ Quick-action lever ≤ DN 150

▪ Gearbox ≥ DN 400

▪ Double-acting pneumatic actuators ≤ DN 800

▪ Electric actuators ≤ DN 1200 (with rising stem)

▪ Limit switch(es)

▪ Solenoid valves to NAMUR

▪ 3.1 certificate

▪ Larger nominal sizes and other variants on request

Product benefits

▪ All cast iron and steel components are protected against

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Knife Gate Valves

Bi-directional Knife Gate Valve

▪ Robust and compact steel yoke for straightforward

mounting of pneumatic and electric actuators and position switches. A hard anodised aluminium NAMUR adapter plate attached to the actuator allows sensors or solenoid valves to be quickly installed (plug & run).

▪ Reliable and service-friendly stem seal: The gland packing is made of PTFE impregnated fibre and can be re-adjusted during operation. There is no need to remove the valve from the piping to replace the packing.

▪ High functional reliability and tight shut-off in both flow directions

– The stainless steel blade is polished on both sides and guided by a confined U-shaped seal during the entire valve travel. This prevents "chattering" of the blade and minimises the risk of deposits.

– Flushing corners in the body ensure the seat is flushed clean when the valve closes.

▪ Suitable for universal use. Flange connection via tapped blind holes and throughbolts enables the wafer-type knife gate valve to be clamped between pipe flanges or used as dead-end valve at full operating pressure.

▪ Economically efficient

– The valve is available in a single-piece or two-piece body design with full bore providing unrestricted flow passage. The body is fully machined inside, resulting in a tight fit of all components, very low pressure losses and high flow coefficients.

– As a standard feature, O-rings are integrated into the body and serve as flange seals. This helps to save extra costs for providing and fitting external flange seals.

Product information

Product information as per Regulation No.

1907/2006 (REACH)

For information as per chemicals Regulation (EC) No 1907/2006 (REACH), see http://www.ksb.com/reach.

Product information as per Pressure Equipment

Directive 2014/68/EU (PED)

The valves satisfy the safety requirements of Annex I of the European Pressure Equipment Directive 2014/68/EU (PED) for fluids in Groups 1 and 2.

Product information as per Directive 2014/34/EU (ATEX)

The valves do not have a potential internal source of ignition and can be used in potentially explosive atmospheres, Group II, category 2 (zones 1+21) and category 3 (zones 2+22) to ATEX 2014/34/EU.

Purchase order specifications

Please specify the following information in all enquiries or purchase orders: 1. Type 2. Nominal pressure 3. Nominal size 4. Operating pressure 5. Operating temperature 6. Fluid handled 7. Variants 8. Reference number

Pressure/temperature ratings

Test pressure and operating pressure

PN DN Shell test Leak test (seat) Permissible operating pressure

With water Tests P10 and P11 to

DIN EN 12266-1 Test P12 to DIN EN 12266-1

1) _{-10 to +120 °C}

[bar] [bar] [bar]

10 50 - 250 15 11 10

6 300 - 400 9 6,6 6

5 450 7,5 5,5 5

4 500 - 600 6 4,4 4

2 700 - 1200 3 2,2 2

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Materials

Fig. 1: Sectional drawing Overview of available materials

Part No. Description Material Material number Note

100 Body EN-GJS-400-15 5.3106 DN 50 - 500: epoxy-coated,

single-piece

DN 600: epoxy-coated, two-piece

166 Yoke Steel 1.0044 / S275JR Epoxy-coated

200 Stem Stainless steel 1.4016 / AISI 430 Non-rising

360 Blade Stainless steel 1.4571 / AISI 316 Ti DN 50 - 400

Stainless steel 1.4301 / AISI 304 ≥ DN 450

410 U-shaped seal EPDM with steel core -

-412.1 O-ring EPDM - Integrated flange seal

412.2 O-ring EPDM -

-452 Gland follower EN-GJS-400-15 5.3106 Epoxy-coated

461 Gland packing PTFE-impregnated

synthetic fibres

-

-540 Bush Stainless steel 1.4301 / AISI 304

-544 Threaded bush Brass -

-547 Guide bush Manganese bronze C86300 / CB762S

-556 Anti-friction disc PET + solid lubricant -

-562 Spring-type straight

Steel DIN 7346

-901 Hexagon head bolt A2 -

-902 Stud A2 -

-920 Hexagon nut A2 -

-961 Handwheel Steel - DN 50 - 300: epoxy-coated

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Knife Gate Valves

Variants

Chain wheel (non-rising stem) Quick-action lever

Gearbox (non-rising stem) Pneumatic actuators

(double-acting)

Electric actuators (rising stem)

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Dimensions and weights

ø k ø k ø k ø k ø k ø k ø k ø k ø k DN 50-65 DN 80-200 DN 250-300 DN 350-400 DN 450-500 DN 600 DN 700-800 DN 900-1000 DN 1200

Fig. 2: Sectional drawing Dimensions and weights

PN DN l h1 B ø d [kg] [mm] [mm] [mm] [mm] 10 50 43 312 113 225 8 65 46 339 128 225 9 80 46 364 143 225 10 100 52 405 162 225 12 125 56 439 181 225 15 150 56 485 209 225 17 200 60 595 263 310 30 250 68 695 315 310 42 6 300 78 785 370 310 60 350 78 932 420 410 90 400 102 1017 478 410 140 5 450 114 1119 532 550 185 4 500 127 1219 584 550 204 600 110 1379 762 550 230 2 700 110 1736 890 800 380 800 110 1923 1012 800 550 900 110 2047 1112 800 680 1000 110 2487 1240 800 800 Dimensions [mm] PN DN ø k Number of bolt holes z Bolt size ø M Blind hole depth T

Tapped blind holes n1

Clearance holes2)

n2

Tapped holes3)

n3

[mm] Qty [mm] Qty Qty Qty

10 50 125 4 M16 10 4 0 0 65 145 4 M16 10 4 0 0 80 160 8 M16 12 4 4 0 100 180 8 M16 12 4 4 0 125 210 8 M16 14 4 4 0 150 240 8 M20 14 4 4 0

2) Bolts passing along the side of the body

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Knife Gate Valves

PN DN ø k Number of bolt holes z Bolt size ø M Blind hole depth T

Tapped blind holes n1

Clearance holes2)

n2

Tapped holes3)

n3

[mm] Qty [mm] Qty Qty Qty

10 200 295 8 M20 14 4 4 0 250 350 12 M20 18 8 4 0 6 300 400 12 M20 21 8 4 0 350 460 16 M20 21 6 4 6 400 515 16 M24 28 6 4 6 5 450 565 20 M24 30 12 4 4 4 500 620 20 M24 40 8 4 8 600 725 20 M27 26 12 8 0 2 700 840 24 M27 20 16 8 0 800 950 24 M30 20 16 8 0 900 1050 28 M30 20 20 8 0 1000 1160 28 M33 20 20 8 0

Mating dimensions as per standard

Face-to-face lengths: EN 558-1/20 up to DN 500

≥ DN 600: see table

Flanges: DIN EN 1092-2

Other flange designs

▪ Other flange designs on request

Installation instructions

HERA BD is bi-directional, i.e. flow may pass the valve in either direction. Installation as dead-end valve at full operating pressure without counterflange is permissible. Observe the maximum operating pressures for the respective nominal sizes. Due to the O-rings integrated into the flange faces no further flange seals are required.

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KSB SE & Co. KGaA

Johann-Klein-Straße 9 • 67227 Frankenthal (Germany) Tel. +49 6233 86-0

HERA-BD Type Series Booklet

Knife Gate Valve

HERA-BD

Type Series Booklet HERA-BD

All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,

edited or processed for any other purpose, nor otherwise transmitted, published or made available to a

third party without the manufacturer's express written consent.

Subject to technical modification without prior notice.

Contents

Knife Gate Valves... 4

Contents

Knife Gate Valves

Bi-directional Knife Gate Valve

HERA-BD

Main applications

Fluids handled

Operating data

Valve body materials

Design details

Design

Variants

Product benefits

Knife Gate Valves

Product information

Product information as per Regulation No.

1907/2006 (REACH)

Product information as per Pressure Equipment

Directive 2014/68/EU (PED)

Product information as per Directive 2014/34/EU (ATEX)

Related documents

Purchase order specifications

Pressure/temperature ratings

Materials

Knife Gate Valves

Variants

Dimensions and weights

Knife Gate Valves

Mating dimensions as per standard

Other flange designs

Installation instructions